Our project intends to create a 3d visualization of users' mental and physical health data. Our concept derives from galaxy, where dusts and stars are driven by the intangible gravitational field, forming the beautiful disk. We believe that every person is part of cosmic system, but at the same time they have a universe within theirselves that mimic the universe outside. We are interested in creating such a personal-scale galaxy. In our project, the galaxy is customized based on imput data and well represents users' overal status in a given time span. For data collection, we use users' daily mood record as reflection of their inner world. And we also import users' sleeping, standing, exercising, seating time analysis from Apple Health as parameters of their physical health. The psychological data are represented by stars, with varying size and galre. While the moving particles represents the proportion of physical parameters compared to average standard. Users can compare their status from different months or weeks by looking at series of generated galaxies.